Taylor Swift says she doesn't understand how to make her relationships last

The 22-year-old singer - who is currently dating One Direction hunk Harry Styles and has previously romanced Conor Kennedy, Taylor Lautner, Jake Gyllenhaal and John Mayer - laments the fact none of her romances have worked out but she is hoping her love luck changes in the future.

She said: "I don't understand how to make relationships last. I've never had a really long relationship, so I have no idea what that's like. Wish me luck for the future."

The 'We Are Never Ever Getting Back Together' hitmaker also admitted she doesn't have a particular physical type when it comes to her boyfriends as she finds "strength of character" the most attractive quality.She added in an interview with Britain's Cosmopolitan magazine: "I really don't have any rules about dating when it comes to height, age, career choice, anything like that.

"It doesn't matter. It's really more about strength of character.

"When it comes to age, I've been all over the map!"

And the blonde beauty says the best relationship advice she ever received came from talk show host Jay Leno, who told her to find someone who made her want to be better.

She explained: "Jay Leno told me, 'It's easy. Just marry your conscience. Marry the one who makes you want to be a better person.' "